I want to stitch together a fully automated workflow in n8n that is assisted by an AI agent. The core objective is hands-free workflow automation spanning Google Workspace, Salesforce and Slack so I can quit the repetitive busywork and focus on higher-value tasks... (Budget: €250 - €750 EUR, Jobs: API Integration, Automation, n8n, PHP, Salesforce App Development, Salesforce.com, Slack, Software Architecture)